Oncolytics Presents Positive Updated Pancreatic Cancer Data from GOBLET Phase 1/2 Study at ESMO - Seite 2

• Mean baseline TIL cell levels of 22%
• Expansion of pre-existing and new T cell clones, including the expansion of TIL-specific clones
• A correlation between the expansion in the blood of TIL-specific clones and tumor response

Safety: The treatment combination has been well tolerated with no safety concerns

• Most common grade 3 and 4 treatment-related adverse events were related to red and white blood cell counts (anemia, neutropenia and decreased neutrophil counts)

"The data from this study show a correlation between the expansion of TIL-specific clones and tumor response, which provides compelling support for the use of pelareorep-based therapies in immunologically "cold" tumors. In particular, these data, along with the impressive clinical results, support the ability of pelareorep-checkpoint inhibitor combination therapies to meaningfully improve treatment responses in diseases like pancreatic cancer that have resisted immune-based therapeutic approaches," said Thomas Heineman, M.D., Ph.D., Chief Medical Officer at Oncolytics. "Given the urgent need for better treatment options for patients with pancreatic cancer, we are especially gratified to observe that results from the combination regimen we are evaluating surpassed published historical results^1-4. We look forward to beginning the Precision Promise^SM Pivotal Phase 3 platform trial as soon as possible, and we wish to express our sincere gratitude to all the patients, caregivers, and study site personnel associated with the GOBLET trial."

GOBLET Study PDAC Patient Overview:

Patients in the PDAC cohort, presented at ESMO 2023, are undergoing first-line treatment with a combination of pelareorep, atezolizumab, gemcitabine and nab-paclitaxel. The 13 evaluable patients enrolled in the first stage of the study have been evaluated based on a September 18, 2023 data cut-off date. The enrolled patient population included 93% of patients with metastatic disease (69% with liver metastases) and baseline ECOG scores of 0 (31%) and 1 (69%), with an average age of 61.2 years.

References

1. Von Hoff D et al. N Engl J Med 2013; 369:1691-1703 DOI: 10.1056/NEJMoa1304369

2. O'Reilly et al. Eur J Cancer. 2020 June; 132: 112–121. DOI:10.1016/j.ejca.2020.03.005

3. Karasic et al. JAMA Oncol. 2019 Jul 1; 5(7):993-998. DOI: 10.1001/jamaoncol.2019.0684

4. Tempero et al. Ann Oncol. 2021 May; 32(5):600-608. DOI: 10.1016/j.annonc.2021.01.070